LT3030
LT3030
RECOMMENDED FOR NEW DESIGNSDual 750mA/250mA Low Dropout, Low Noise, Micropower Linear Regulator
- Part Models
- 14
- 1ku List Price
- Starting From $4.97
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Overview
- Output Current: 750mA/250mA
- Low Dropout Voltage: 300mV
- Low Noise: 20μVRMS (10Hz to 100kHz)
- Low Quiescent Current: 120μA/75μA
- Wide Input Voltage Range: 1.7V to 20V
- Adjustable Output: 1.220V Reference Voltage
- Shutdown Quiescent Current: <1μA
- Stable with 10μF/3.3μF Minimum Output Capacitor
- Stable with Ceramic, Tantalum or Aluminum Electrolytic Capacitors
- Precision Threshold for Shutdown Logic or UVLO Function
- PWRGD Flag for each Output
- Reverse Battery and Reverse Output-to-Input Protection
- Current Limit with Foldback and Thermal Shutdown
- Thermally Enhanced 20-Lead TSSOP and 28-Lead (4mm × 5mm) QFN Packages
The LT3030 is a dual, micropower, low noise, low dropout linear regulator. The device operates with either common or independent input supplies for each channel, over a 1.7V to 20V input voltage range. Output 1/Output 2 supply 750mA/250mA respectively with a typical dropout voltage of 300mV. With an external 10nF bypass capacitor, output noise is only 20μVRMS over a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 120μA/75μA quiescent current makes it an ideal choice. In shutdown, quiescent current drops to less than 1μA. Shutdown control is independent for each channel and its precision logic threshold allows for voltage lockout functionality. The LT3030 includes a PWRGD flag for each channel to indicate output regulation.
The LT3030 optimizes stability and transient response with low ESR ceramic output capacitors, requiring a minimum of only 10μF/3.3μF.
Internal circuitry provides reverse-battery protection, reverse-current protection, current limiting with foldback and thermal shutdown with hysteresis. The adjustable output voltage device has a 1.220V reference voltage. The LT3030 is offered in the thermally enhanced 20-lead TSSOP and 28-lead, low profile (4mm × 5mm × 0.75mm) QFN packages.
Applications
- General Purpose Linear Regulator
- Battery-Powered Systems
- Microprocessor Core/Logic Supplies
- Post Regulator for Switching Supplies
- Tracking/Sequencing Power Supplies
Documentation
Data Sheet 1
User Guide 1
Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT3030EFE#PBF | 20-Lead TSSOP w/ EP | ||
| LT3030EFE#TRPBF | 20-Lead TSSOP w/ EP | ||
| LT3030EUFD#PBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LT3030EUFD#TRPBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LT3030HFE#PBF | 20-Lead TSSOP w/ EP | ||
| LT3030HFE#TRPBF | 20-Lead TSSOP w/ EP | ||
| LT3030HUFD#PBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LT3030HUFD#TRPBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LT3030IFE#PBF | 20-Lead TSSOP w/ EP | ||
| LT3030IFE#TRPBF | 20-Lead TSSOP w/ EP | ||
| LT3030IUFD#PBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LT3030IUFD#TRPBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LT3030MPFE#PBF | 20-Lead TSSOP w/ EP | ||
| LT3030MPFE#TRPBF | 20-Lead TSSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper |
||
| LT3030EFE#PBF | PRODUCTION | |
| LT3030EFE#TRPBF | PRODUCTION | |
| LT3030EUFD#PBF | PRODUCTION | |
| LT3030EUFD#TRPBF | PRODUCTION | |
| LT3030HFE#PBF | PRODUCTION | |
| LT3030HFE#TRPBF | PRODUCTION | |
| LT3030IFE#PBF | PRODUCTION | |
| LT3030IFE#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL |
||
| LT3030EFE#PBF | PRODUCTION | |
| LT3030EFE#TRPBF | PRODUCTION | |
| LT3030HFE#PBF | PRODUCTION | |
| LT3030HFE#TRPBF | PRODUCTION | |
| LT3030IFE#PBF | PRODUCTION | |
| LT3030IFE#TRPBF | PRODUCTION | |
| LT3030MPFE#PBF | PRODUCTION | |
| LT3030MPFE#TRPBF | PRODUCTION | |
|
Feb 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products |
||
| LT3030EUFD#PBF | PRODUCTION | |
| LT3030EUFD#TRPBF | PRODUCTION | |
| LT3030HUFD#PBF | PRODUCTION | |
| LT3030HUFD#TRPBF | PRODUCTION | |
| LT3030IUFD#PBF | PRODUCTION | |
| LT3030IUFD#TRPBF | PRODUCTION | |
|
Apr 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper |
||
| LT3030HUFD#PBF | PRODUCTION | |
| LT3030HUFD#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
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| Power System Management (PSM) & Sequencers 1 | ||
| LTC2974 | RECOMMENDED FOR NEW DESIGNS | 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT3030
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LT3030 Demo Board | Dual, Low Noise, Micropower Linear Regulator 2.2V ≤ VIN ≤ 20V, VOUT1/VOUT2 = 1.5V/1.8V/2.5V/3.3V/5V @ 750mA/250mA
Resources
Reference Designs
